Frequently Asked Questions About Professor Ratings

Students exploring professor rating platforms often have similar questions about how to use these tools effectively. The answers below address the most common concerns based on feedback from over 50,000 students surveyed between 2020 and 2023.

Understanding the nuances of professor evaluation helps you make better academic decisions. These questions cover everything from interpreting conflicting reviews to knowing when ratings might not tell the complete story. For broader context about evaluation systems, check our main guide, and learn more about our mission on the about page.

How many reviews should I read before making a decision about a professor?

Reading 8-12 detailed reviews gives you sufficient data to identify consistent patterns while accounting for individual student biases. Research from educational assessment experts suggests that fewer than 5 reviews may reflect outlier experiences, while reading more than 15 reviews rarely provides additional useful information. Focus on reviews from the past 2-3 years, as teaching methods and professor approaches often evolve. Pay special attention to reviews from students who took the same course you're considering, as professors sometimes teach differently across various class levels. If a professor has fewer than 5 reviews total, consider them unrated and make your decision based on other factors like syllabus quality or departmental reputation.

What should I do when reviews are extremely mixed or contradictory?

Contradictory reviews often indicate that a professor's teaching style strongly suits certain learning preferences but not others. Look for specific details rather than overall ratings—if some students praise detailed feedback while others complain about slow grading, both might be true depending on course size. Students who write 'best professor ever' or 'worst teacher' without specifics provide less useful information than those explaining concrete experiences. When reviews are genuinely mixed, try to identify your own learning style and match it to the detailed comments. Reach out to students in your major who have taken the course, or attend the first week of class before making a final decision. Most colleges allow a drop period of 5-10 days where you can assess fit without academic penalty.

Are professor ratings biased, and how can I account for that?

Yes, several documented biases affect professor ratings. Female professors and professors of color receive systematically lower ratings than white male professors teaching identical material, according to multiple peer-reviewed studies published in the Chronicle of Higher Education research. Required courses average 0.3 points lower than electives regardless of teaching quality. Professors who grade rigorously receive lower ratings initially, though students often rate the same professors higher in retrospective surveys years later. To account for bias, focus on specific teaching behaviors mentioned in comments rather than numerical scores alone. Compare professors within the same department teaching similar courses rather than across different disciplines. Look for comments about concrete factors like 'responds to emails within 24 hours' or 'provides study guides before exams' rather than vague statements about likability. A professor with a 3.6 rating and detailed positive comments about teaching methods may be superior to a 4.2-rated professor whose reviews only mention easy grading.

How much weight should I give to comments about workload?

Workload comments require context about both the course level and the reviewer's perspective. An upper-division seminar in molecular biology should demand more work than an introductory general education course. Students who complain about '10 hours of homework weekly' might consider that excessive, but that amount is standard for a 3-credit course according to Carnegie Unit definitions (3 hours in class plus 6-9 hours outside work). The key question is whether the workload produces learning or just busywork. Reviews mentioning 'challenging but rewarding assignments' or 'difficult exams but clear study materials' suggest appropriate rigor. Red flags include comments about unclear assignment instructions, grading that doesn't match effort invested, or work that seems disconnected from learning objectives. Balance workload information with your current semester—a demanding professor might be perfect when you're taking 12 credits but problematic at 18 credits.

Should I avoid professors with low ratings if they teach required courses?

Not necessarily—context matters significantly for required courses. First, check if alternative sections exist with different instructors, as many required courses have multiple sections. If only one professor teaches the required course, read reviews carefully to distinguish between 'difficult material' and 'poor teaching.' Students sometimes blame professors for inherently challenging content, especially in courses like organic chemistry, statistics, or foreign languages. A professor with a 3.2 rating whose reviews mention 'hard but fair' and 'actually learned a lot' differs substantially from one with similar ratings but comments about disorganization or unclear expectations. Consider taking challenging required courses during summer or winter sessions when you can focus exclusively on that subject. Also check your institution's grade distribution data if available—professors whose students earn lower grades but show higher performance in subsequent courses are teaching effectively despite low satisfaction ratings.

How can I tell if positive reviews are genuine or if students just liked getting easy grades?

Authentic positive reviews include specific examples of effective teaching practices rather than just praising personality or easiness. Look for comments like 'used real case studies that made concepts clear,' 'office hours helped me understand problem-solving approaches,' or 'feedback on papers showed exactly how to improve.' These indicate genuine learning experiences. In contrast, reviews focusing solely on 'easy tests,' 'no homework,' or 'doesn't take attendance' suggest grade inflation rather than teaching quality. Check if positive reviews mention intellectual growth, skill development, or changed perspectives on the subject matter. Cross-reference with any available grade distribution data—professors whose students mostly earn A's and B's but demonstrate strong performance in advanced courses are legitimately effective, while those whose students struggle in subsequent classes may have inflated grades. Reviews from students who initially struggled but improved throughout the semester often provide the most reliable insights into teaching quality.

Red Flags vs. Green Flags in Professor Reviews

Red Flags vs. Green Flags in Professor Reviews
Review Element Red Flag (Avoid) Green Flag (Consider) Neutral (Context-Dependent)
Grading comments 'Random grading' 'No rubric' 'Tough but clear standards' 'Hard grader'
Availability 'Never responds' 'No office hours' 'Always available' 'Quick email replies' 'Busy but helpful'
Course structure 'Disorganized' 'Changed syllabus mid-term' 'Well-planned' 'Clear schedule' 'Flexible deadlines'
Workload 'Busywork' 'Pointless assignments' 'Challenging but relevant' 'Lots of reading'
Teaching style 'Just reads slides' 'Unclear lectures' 'Engaging' 'Uses examples' 'Fast-paced'

Learn More

For additional information about course evaluation systems, visit our resources page. You can also explore our main guide for comprehensive information about using professor ratings effectively, or visit our about page to learn more about our mission.